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https://issues.apache.org/jira/browse/LANG-738?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gary D. Gregory resolved LANG-738.
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Resolution: Fixed
In trunk.
> Use internal Java's Number caches instead creating new objects
> --------------------------------------------------------------
>
> Key: LANG-738
> URL: https://issues.apache.org/jira/browse/LANG-738
> Project: Commons Lang
> Issue Type: Improvement
> Components: lang.*
> Affects Versions: 3.0
> Environment: Apache Maven 3.0.3 (r1075438; 2011-02-28 12:31:09-0500)
> Maven home: C:\Java\apache-maven-3.0.3\bin\..
> Java version: 1.6.0_24, vendor: Sun Microsystems Inc.
> Java home: C:\Program Files\Java\jdk1.6.0_24\jre
> Default locale: en_US, platform encoding: Cp1252
> OS name: "windows 7", version: "6.1", arch: "amd64", family: "windows"
> Reporter: Gary D. Gregory
> Assignee: Gary D. Gregory
> Fix For: 3.0.1
>
>
> Use internal Java's Number caches instead creating new objects:
> - Use more efficient Integer cache: Use "Integer.valueOf(int)" instead of
> "new Integer(int)".
> - Use more efficient Long cache: Use "Long.valueOf(int)" instead of "new
> Long(long)".
> - Use more efficient Short cache: Use "Short.valueOf(int)" instead of "new
> Short(short)".
> In Java version 1.6.0_24 (vendor: Sun Microsystems Inc.), Float and Double do
> not implement caches, but I've made the same changes for consistency and
> future proofing.
> - Use "Double.valueOf(int)" instead of "new Double(double)".
> - Use "Float.valueOf(int)" instead of "new Float(float)".
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